Perhaps you should try some spelling variations:
probability mapping » probability sampling, probability matching, probability ranking
iii statistical » ii statistical
use probability » e probability, useful probability, some probability
i statistical » ii statistical

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: holland ((iii statistical) OR (i statistical)) use probability mapping.
• Adding a wildcard symbol may retrieve word variants: holland ((iii statistical) or (i statistical)) use probability mapping*.